MY177081A - Device and method for controlling disc runout in an optical disc drive system - Google Patents

Device and method for controlling disc runout in an optical disc drive system

Info

Publication number
MY177081A
MY177081A MYPI20060838A MYPI20060838A MY177081A MY 177081 A MY177081 A MY 177081A MY PI20060838 A MYPI20060838 A MY PI20060838A MY PI20060838 A MYPI20060838 A MY PI20060838A MY 177081 A MY177081 A MY 177081A
Authority
MY
Malaysia
Prior art keywords
disc
runout
controlling
drive system
optical
Prior art date
Application number
MYPI20060838A
Inventor
Adrianus Verschuren Coen
Original Assignee
Koninklijke Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics Nv filed Critical Koninklijke Philips Electronics Nv
Publication of MY177081A publication Critical patent/MY177081A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

A device for controlling disc runout in an optical disc drive system (10) is described, comprising a rotatable support (12) having a rotation axis (16), the support (12) being arranged to hold a disc (14) such that a normal (18) of the disc (14) is essentially parallel to the rotation axis (16), a tilt means (36) arranged at said support (12) for tilting the disc (14), an optical pickup unit (26) arranged at the optical disc drive (10) for reading information from or writing information on the disc (14), the optical pickup unit (26) having a near field lens arrangement (28), and further comprising a control means (50) for controlling the tilt means (36) by means of a control signal (52) for adjustment of the normal (18) of the disc (14) to minimize the disc runout, wherein the control signal (52) is derived from a far field lens arrangement (38) additionally present in the drive system (10). Further, a method for controlling this runout is described.
MYPI20060838A 2005-02-28 2006-02-27 Device and method for controlling disc runout in an optical disc drive system MY177081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05101517 2005-02-28

Publications (1)

Publication Number Publication Date
MY177081A true MY177081A (en) 2020-09-04

Family

ID=36320212

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20060838A MY177081A (en) 2005-02-28 2006-02-27 Device and method for controlling disc runout in an optical disc drive system

Country Status (8)

Country Link
US (1) US20080186811A1 (en)
EP (1) EP1856694A1 (en)
JP (1) JP2008532198A (en)
KR (1) KR20070116833A (en)
CN (1) CN101128872A (en)
MY (1) MY177081A (en)
TW (1) TW200641857A (en)
WO (1) WO2006090303A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0351953B1 (en) * 1988-06-20 1995-08-16 Mitsubishi Denki Kabushiki Kaisha Optical head with a tilt correction servo mechanism
JP2747332B2 (en) * 1989-07-05 1998-05-06 三菱電機株式会社 Light head
MY132591A (en) 1995-10-26 2007-10-31 Sony Corp Optical disc apparatus.
JPH10177729A (en) * 1996-12-16 1998-06-30 Nec Corp Optical head tilt device
JPH1116186A (en) 1997-06-26 1999-01-22 Sharp Corp Optical pickup device
US6151174A (en) * 1997-10-06 2000-11-21 U.S. Philips Corporation Device for optically scanning a record carrier
KR20010093031A (en) * 2000-03-28 2001-10-27 구자홍 Optical pick up actuator
JP2004005819A (en) * 2002-05-31 2004-01-08 Toshiba Corp Optical disk device
KR100911141B1 (en) * 2002-09-03 2009-08-06 삼성전자주식회사 Lens capable of compensating wavefront error induced by tilt and optical pickup
JP2004103189A (en) * 2002-09-13 2004-04-02 Hitachi Ltd Optical pickup device and optical disk device
US7002886B2 (en) * 2002-11-22 2006-02-21 Industrial Technology Research Institute SIL near-field flying head structure to control gap between disc and SIL with three sensor points in front of lens holder
JP4513744B2 (en) * 2003-01-17 2010-07-28 ソニー株式会社 Information recording or reproducing apparatus and recording or reproducing control method
JP2005259329A (en) * 2004-02-12 2005-09-22 Sony Corp Tilt control method and optical disc apparatus

Also Published As

Publication number Publication date
KR20070116833A (en) 2007-12-11
WO2006090303A1 (en) 2006-08-31
TW200641857A (en) 2006-12-01
CN101128872A (en) 2008-02-20
EP1856694A1 (en) 2007-11-21
JP2008532198A (en) 2008-08-14
US20080186811A1 (en) 2008-08-07

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